#dogwhistle Premium Dog Whistle to Stop Barking & Dog Training Clicker By Pet's Mum | Easy Safe Pet Training & Repellent Kit | Free Lanyard - Dog Training E-book

It was very helpful that the product comes with an E-manual. Once you read it, it becomes easy to understand how this system works. The whistle is soft and not too sharp or unpleasant, the clicker clicks and it's a plastic button clicks which are not too annoying. We are just starting to train our 3 month old puppy, and he responded very well to it so far.